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The Use Of An Ultrasonic Technique To Remove A Fractured Rotary Nickel‐Titanium Instrument From The Apical Third Of A Curved Root Canal
Author(s) -
Ward Jeff R.
Publication year - 2003
Publication title -
australian endodontic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.703
H-Index - 34
eISSN - 1747-4477
pISSN - 1329-1947
DOI - 10.1111/j.1747-4477.2003.tb00492.x
Subject(s) - root canal , nickel titanium , ultrasonic sensor , materials science , dental instruments , dentistry , titanium , fracture (geology) , metallurgy , medicine , composite material , radiology , shape memory alloy
The frequency of use of nickel‐titanium rotary instruments in endodontic practice is increasing. One occasionally mentioned problem is fracture of an instrument within the root canal. The broken instrument may prevent access to the root apex, impeding optimal cleaning and shaping procedures. A case report is presented which uses a modern technique, utilising a staging platform and the use of newly designed ultrasonic tips with direct visualisation through a dental operating microscope, to remove a fractured rotary nickel‐titanium instrument from the apical third of a curved root canal.